pH7CMS is a Professional Social CMS to build an Online Dating Services or Social Network Websites. The software is completely written in OOP (Object-Oriented PHP) with the MVC programming pattern (Model-View-Controller).
It is designed with the KISS principle in mind and the all source code can be read and understood in minutes. For the best flexibility, the script also uses PDO (PHP Data Objects) abstraction which allows the choice of the database. The principle of the "pH7CMS's development" is DRY (Don't Repeat Yourself) aimed at reducing repetition of information of all kinds (not duplicate code). In addition, it is fast, low-resource-intensive, extremely powerful and very secure. Version : 14.8.9Release Date : 23-12-2018

Oxwall is unbelievably flexible and easy to use PHP/MySQL community software platform.
Oxwall is used for a wide range of projects starting from family sites and custom social networks to collaboration tools and enterprise community solutions. Version : 1.8.4Release Date : 26-07-2016

Jcow is a flexible Social Networking software written in PHP. It can help you to:
* Build a social network for your interests and passions.
* Build a member community for your existing website.
* Build a social networking site like facebook/myspace/twitter.
Version : 12.0Release Date : 18-12-2018

Elgg empowers individuals, groups and institutions to create their own fully-featured social environment. Elgg, started in 2004, is an open source social engine which powers all kinds of social environments - from education and business to martial arts and rugby. If you are looking for a professional social intranet or want to run a site for your organisation, Elgg is a great choice.Version : 2.3.10Release Date : 21-12-2018

Open Source Social Network also know as OSSN is a social networking software written in PHP.
Open Source Social Network allows you to make a social networking website, helps your members build social relationships with people who share similar professional or personal interests. Version : 5.0Release Date : 14-11-2018

Etano can be used to start up a dating site, a social networking site, a classifieds site or any other type of site involving groups of people, companies, products. Version : 2.60Release Date : 12-03-2018

Beatz is an online social networking community script that allows you to start your own favourite artist band website.
Beatz is an online community script for sharing, discussing and learning about new artists and your favorites. Version : 2.0

PeoplePods is a developer-friendly social software toolkit.
Build applications where people meet, talk, share, read, work, publish and explore.
PeoplePods provides a flexible infrastructure within which members of a site can create, comment upon, and consume content of arbitrary types. Version : 0.9Release Date : 19-04-2011

HumHub is a free social network software and framework built to give you the tools to make communication and collaboration easy and successful. It's lightweight, powerful and comes with an user-friendly interface. With HumHub you can create your own customized social network, social intranet or huge social enterprise application that really fits your needs. Version : 1.3.8Release Date : 10-12-2018

UNA is a Community Management System for building and running modern social websites.
UNA (United Networking Applications) is a customizable open-source social networking platform. Every component module, tool, template or language is treated as an “app”. Apps control customization of design and navigation; the addition of new features and integration of 3rd-party APIs; site monitoring and configuration; permissions and database structure setup; translation and texts editing.
UNA is the “next-generation” social software platform, developed for enterprise-class clients requiring a custom solution, deep integration with existing infrastructure and extended ongoing support. UNA is a fully responsive system, with mobile and tap-friendly layout, optimised for all screens sizes. Version : 9.0.0Release Date : 05-12-2018

Hubzilla is a powerful platform for creating interconnected websites featuring a decentralized identity, communications, and permissions framework built using common webserver technology. Version : 3.8.8Release Date : 22-12-2018

Elgg empowers individuals, groups and institutions to create their own fully-featured social environment. Elgg, started in 2004, is an open source social engine which powers all kinds of social environments - from education and business to martial arts and rugby. If you are looking for a professional social intranet or want to run a site for your organisation, Elgg is a great choice.Version : 1.12.17Release Date : 21-09-2017